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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 258745Generated: October 27, 2026

Hydrochloric Acid → N-Methyl-N'-methylamino-N"-[2-((4-methyl-5-imidazolyl)methylthio)ethyl]guanidine dihydrochloride

https://huagongshe.com/reaction/258745

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium BicarbonateHCID 516893—
ReactantN-methyl-N-tert-butoxycarbonylhydrazine sulphateHCID 88794812—
ReactantHCID 178485010HCID 178485010—
SolventDimethylformamideHCID 6228—
ProductN-Methyl-N'-methylamino-N"-[2-((4-methyl-5-imidazolyl)methylthio)ethyl]guanidine dihydrochlorideHCID 178486240—

Reaction Conditions

Temperature90 °C

Reaction Steps

A mixture of the isothiourea dihydrochloride of Example 1 (i) (6.7 g), N-methyl-N-tert-butoxycarbonylhydrazine sulphate (5.7 g), potassium hydrogen carbonate (10.0 g) and anhydrous dimethylformamide (80 ml) was stirred at 90° C. for 3 hours. After cooling, filtration and concentration to yield the free base, this was heated under reflux with ethanolic hydrogen chloride. Concentration and trituration of the residual product yielded the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04034101
Source datasetuspto-grants-1977_07
ORD IDord-ae33860c3be94f0fa9214fab10a9ef6e
Source noteuspto-grants-1977_07